Swaging mechanism for nipples



June 17, 1930.

E. W. STOLER SWAGING MECHANISM FOR NIPPLES Filed Dec/24, 1928 2. Sheets-Sheet 1 ATTORNEY.

June 17, 1930. ,5, w, STOLER 1,763,938

SWAGING MECHANISM FOR NIPPLES Filed Dec. 24, 1928 2 Sheets-Sheet '2 INVEN TOR.

A TTORNEY.

UlTED STATS GFECE EDWARD W. STOLEB, OF MANSFIELD, OI-IIO SWAGING MECHANISM FOR NIPPLES Application filed December 24, 1928. Serial No. 328,300.

The invention relates to the construction are engaged alternately by the cam C, to of nipples for retaining the wire spokes of open and close the dies. pneumatic wheels for motor cars in place, The cam sleeve also engages with the cenin the rim or hub of the wheel, and the par tral pivot M of a toggle joint composed of ticular objects of the invention are to pro links N, O, the outer ends of which are 55 vide a continuous process and mechanism for pivoted in the rock arms at P, Q, respecswaging the same, from a coil of metal wire tively. with dies. Set screws R, R, adjust the movement of By means of this process a continuous sucthese arms, and set screws S, S, adjust the cession of nipple blanks are formed by presmovements of the dies and clamping screws 60 sure from a cylindrical wire or rod fed to T and V, secure the dies in adjusted posiforming dies by means of which their extions. ternal surfaces are completely shaped, ready TV is a stationary shearing block mounted for boring or screw threading. in the standard A against which the forming In this device powerful toggle mechanism dies move transversely to sever the blank 65 is employed to compress the sides of the from the wire stock.

blank and a simple unitary structure is pro- This block is provided with an opening vided in which the mechanism is self 0011- W through which the wire is passed. tained and is operated from a common actu- The device operates in the following manating shaft from which all the various movener, I I I 70 ments are obtained. The wire is severed when the forming dies The mechanism by means of which the sevpass the opening in the stationary block at eral steps of the process are carried out is W. Also the compression begins at once, exemplified in the accompanying drawings and is completed as the dies pass to the cenhereinafter more fully described and the tral position at X and finally when thedies 5 novelty therein particularly pointed out in have passed to the third position as Y, the the claims. heading die Z forms the head, as shown in In the accompanying drawings Fig. 1 is Figs. 6 and 7. a side elevation of the improved forming The oscillating head is operated toconvey head, the dies in succession to the several posi- Fig. 2 is a front elevation thereof, tions, by means of the action of the cam C, Fig. 3 is a plan thereof, and the dies areopened and closed, by the Fig. 4: is an enlarged plan thereof, movements of cam C and the sleeve L, Fig. 5 is an enlarged front elevation thereon, acting upon the toggle links N, O, V 35 thereofwhich are operatively connected with the Figs. 6 and 7 are full sized front and side cam sleeve at M, elevations respectively of the finished blank. I When the Cam is in a horizontal position In these views is the standard of the at the right of the Shaft 5) at the formmg d B 15 the Operatmg shaft dies will be in position to receive the wire Is an l g Cam thereqn are stock from which the nipple is formed, as angular Swlngmg plates plvoted at E upon the cam .moves toward the left and arrives the Stan-dam j i i Support all at the central upper vertical position at (2), the movmg partso t 6 ea the lower ends of the rock arms will be These parts comprise rock arms F and G, v I v s v f j 45 which are pivoted intermediately of their Splead apart: thus 9 22 the Ormmg (hes J, and K, to approach each other.

ends at H and I res ectively, in the plates I I I D, D, and upon theif upper ends in guides Vvhen kl made befween Q J K, are adjustably secured to the formstrap and ad usting screw R the dies start v, inc 01' -aging lies J and K, t0 IDOVG fIOHl the POSltlOll (l) lJOWEL IClS pOSl The lower extremities of these rock arms tion. (2),at which time the square is par is the vertical position 4- underneath the.

shaft B the dies remains at rest until contacts. atthese points are made. During this rest interval of the die the head is formed by means or" the heading die which may be operated in any convenient manner.

Having described the invention what I claim asnew and desire to secure by Letters Patent'is,

1. In a forming head of the character described, a standard, a shearing plate therein, said plate having a feed opening therethrough, a pair of dies reciprocable in said standard across said opening, a pair of arms to .which said dies are respectively secured, an oscillating memberpivoted in said standard in which said arms are pivoted, toggle links connecting said arms and cam means for alternately operating said arms to oscillate said oscillating member, said cam means serving also to operatesaid toggle links to close said dies. f I V 2. Ina forming head of the character'described, a standard, a shearing plate therein, said plate having 7 a feed. opening there through, a pair of dies reciprocable in said standard across said opening, a pair'of arms to which said'dies are respectively secured, an oscillating member pivoted in said standard in which said arms are pivoted, toggle links connecting said arms and cam means for alternately operating said arms to oscillate said oscillating member, said cam means serving also to operated said toggle links I to close said dies, and adjusting means for. said dies, and adjustable means 'for determining the amount of clearances between said cam means and said arms. i V

3. In avforming head of the character described, astationary shearing plate, and a pair of forming dies reciprocable thereover,

an oscillating member, a'pair of arms p1voted thereon, said dies being secured to said arms and moving therewith, means for alternately v moving said arms to swing said oscillating member to movesaid dies in oppositedirections andmeans for opening and closing said arms and dies.

Ina forming head of the character described having spacedshearing and heading positions, a standard, a shearing plate therein at the shearing posit-ion having a feed opening, a pair of forming dies, guides in said head for said dies, a heading die spaced from said feed opening, arms to which said dies are attached, a swinging member to which said arms are pivoted, toggle links connecting said arms, cam means for alternately moving said arms to move said forming dies from the shearing position to the heading position and to reverse the movement, said cam means also acting to operate the toggle links to close said dies at a central position between said shearing and heading positions.

In testimony whereof Iaflix my signature.

EDWARD W. STOLER. 

